Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.234 Home All releases olderv2.1.233 v2.1.235newer
Claude Code v2.1.234

Deleting a session from a transcript has a storage-backend implementation

Not switched on
Useful1 Signal3
Storage Backend not in their notes

Deleting a session from a transcript has a new backend routine with retries, disabled here.

A precondition-guarded session-delete rewrite runs only on the tengu_hover_rest path, which is off.

Feature flag
tengu_hover_rest Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.234: on

Read once, for one account on one subscription tier, against v2.1.234. It isn't a statement about your account. What a flag value here can and cannot tell you

tengu_hover_rest
What

A new routine removes a session's records from a transcript by reading the tail and rewriting it under a precondition that fails if another writer got there first, retrying up to three times. It runs only on the storage backend path gated by tengu_hover_rest, which is off in this build.

Details
  • Files whose records are not in the tail take a paged slow path, and there is a file-size ceiling above which the removal is abandoned rather than attempted.
Evidence

Tombstone removal abandoned on the paged path

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.234 →